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CAN blocking

This example application shows how to use the CAN module to transmit and receive normal CAN messages in polling mode.

Description

This application transmits CAN message to CAN Bus and receives CAN message from CAN Bus. To run this application, an evaluation board and Microchip CAN Bus Analyzer is required . They act as different nodes on the CAN bus. While running the application, user can send and receive CAN messages between the board and the analyzer.

Downloading and building the application

To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps/can/can_normal_operation_blocking/firmware .

To build the application, refer to the following table and open the project using its IDE.

Project Name Description
pic32mz_ef_sk.X MPLABX project for PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit
   

Setting up the hardware

The following table shows the target hardware for the application projects.

Project Name Board
pic32mz_ef_sk.X PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit
   

Setting up PIC32MZ Embedded Connectivity with FPU (EF) Starter Kit

Running the Application

  1. Build and program the application project using its respective IDE
  2. Open Microchip CAN Bus Analyzer software and make the following configurations:

    Description Settings
    CAN Bitrate Control 500 Kbps
    CAN Mode Control Normal Mode
    Bus Termination Control ON
       
  3. Connect to the DEBUG UART Virtual COM port and configure the serial settings as follows:
    • Baud : 115200
    • Data : 8 Bits
    • Parity : None
    • Stop : 1 Bit
    • Flow Control : None
  4. Press ‘1’ to transmit message to CAN Bus on console window of the board
  5. “Transmitting Message:Success” will be displayed in the console window of PIC32MK GP DB board board
  6. CAN message will be displayed in the CAN analyzer software
  7. Press ‘2’ to receive message from CAN Bus on console window of the board
  8. Send following CAN message from CAN analyzer software
    • ID : 0x469, DLC : 8, Data: 1, 2, 3, 4, 5, 6, 7, 8
  9. CAN message will be displayed in the terminal window of PIC32MK GP DB board

    output

  10. LED toggles at each message transmission or reception


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